Command Staff

Business OfficeKish
Manager Amber Butler
Amber Butler joined the Department in February 2019, migrating from the County of Ventura General Services Agency as the accounting manager. Amber has been employed by the County of Ventura since 2010 and prior to that was a financial analyst in private industry. Currently she manages the financial operations of the Sheriff’s Department. Amber Butler received her Bachelor of Science degree in Accountancy from California State University, Northridge and has a Master of Public Administration degree from the California State University, Northridge.
MillerEast County Administration
Commander Jeff Miller
Commander Jeff Miller has been a long-time resident of Ventura County, graduating from Thousand Oaks High School in 1986.  He holds a bachelor’s degree in Management from Pepperdine University and a master’s degree in Emergency Services Administration from California State University, Long Beach.  Jeff began his career with the Sheriff’s Office in 1994.  He has held a variety of assignments in the Patrol, Detention, Support and Special Services Divisions, and has worked nearly half his career in various investigative assignments.  As a captain, Jeff was assigned as a Patrol Watch Commander, oversaw patrol operations at the East County Patrol Station, and managed the Internal Affairs and the Major Crimes Units.  Jeff is currently assigned to the East County Patrol Station in Thousand Oaks where he is responsible for patrol operations in the cities of Thousand Oaks and Moorpark.  He also oversees the Tactical Response Team, K-9 Unit, Reserve Deputy Program, and the Chaplain Cadre.
HartmannDetention Services Administration
Commander Mike Hartmann
Commander Mike Hartmann joined the Sheriff’s Office in 1995, after spending nearly nine years in the United States Navy where he served as a member of the submarine force. During his career with the Sheriff’s Office, Mike has worked a variety of assignments including Detention Services at the Todd Road and Pre-Trial Detention Facilities as well as working patrol in Ojai, Thousand Oaks, Moorpark, and Camarillo. Later in his career, he worked in general felony and sexual assault investigations, and he worked internal investigations as part of the Sheriff’s Professional Standards Bureau. As a captain, Mike worked as a patrol watch commander, managed the East County Investigations Bureau, and managed the Sheriff’s Court Services Bureau. He was also the commander of the Sheriff’s Tactical Response Team (TRT), which consists of highly trained deputies who respond to incidents of civil unrest and man-made/natural disasters. Mike has a Bachelor of Science degree in Business Management and a Master of Science degree in Emergency Services Administration from Long Beach State, and he is a graduate of both the Sherman Block Supervisory Leadership Institute and POST Command College (Class 59). Mike is very active in his community as a member of the Tri-Valley Regional Leadership Council and the Southern California Law Enforcement Torch Run Council in support of Special Olympics. Mike is currently assigned to the Detention Services Division where he has oversight of the Pre-Trial Detention Facility and the Court Services Bureau.
ParisThousand Oaks Police Services
Commander Jeremy Paris
Commander Jeremy Paris began his career with the Ventura County Sheriff’s Office in 1998 after attending Brigham Young University in Provo, Utah. He graduated with a Bachelor of Science degree in Geography. Jeremy has worked a variety of assignments in investigative and tactical units including; the Camarillo Special Enforcement Detail, the Sheriff’s Gang Unit, and the Narcotics Bureau.  He was also a member of the SWAT team for over ten years and has been managing the Bomb Squad for the last five years.   Jeremy was promoted to captain in 2016 and worked as a watch commander and the assistant chief of police in the City of Camarillo. In 2019, Jeremy was transferred to the Aviation Unit where he oversaw the Search and Rescue program and managed all aviation operations for the county.
BassiSpecial Services
Commander Romano Bassi
Commander Romano Bassi, the son of Italian immigrants, grew up in the San Fernando Valley with English as his second language. In 1994, Romano moved to Ventura County and joined the Sheriff’s Office. After graduating the academy, Romano was assigned to the Pre-Trial Detention Facility and was one of the opening staff members for the newly constructed Todd Road Jail. Romano’s past assignments include patrol deputy in the Moorpark and Thousand Oaks areas, Administrative Scheduling Senior Deputy and Property Crimes Investigator. Romano was also a member of the Special Weapons and Tactics Team (S.W.A.T.) for 16 years. As a sergeant, Romano worked assignments as Jail Watch Commander, Patrol Sergeant, and the Thousand Oaks Community Oriented Policing and Problem Solving (C.O.P.P.S.) Unit Sergeant. In 2015, Romano was promoted to Captain and worked as a Patrol Watch Commander. In 2017, Romano became the Captain of the Aviation Unit and oversaw all airborne and search and rescue operations for the Sheriff’s Office. He also served as the Technology Captain where he oversaw technology related projects. Romano was promoted to Commander in April 2019. He is currently assigned to the Special Services Division where he oversees Major Crimes, Narcotics, and the Crime Analysis Unit. He also oversees the Aviation/Search and Rescue Unit, Intelligence Unit, and the S.W.A.T. and Bomb Teams.
Romano holds a Bachelor’s Degree in Adult Vocational Education from San Diego State University.
Detention Services Operations
Commander James Fryhoff
Commander James “Jim” Fryhoff grew up in Pasadena, California.  Jim was a police cadet with the Pasadena Police Department prior to moving to Ventura County. Jim relocated to Ventura County when he joined the Ventura County Sheriff’s Office in 1990.  Jim has worked a variety of assignments with the Sheriff’s Office, including detention services, patrol, special enforcement, investigations, and crime prevention. He also served as the Adjutant for two sitting Sheriffs, Assistant Chief in Thousand Oaks, Chief of Police of Ojai, and area Captain for the Ojai Valley, and now the Thousand Oaks Chief of Police.  Jim is married to his wife, Traci, with whom he has two daughters: Vanessa and Savannah.  Jim received his Bachelor’s Degree from San Diego State University in 2009 in Vocational Education with an emphasis on adult learning theory, a Master’s Degree from the University of Oklahoma in Administrative Leadership, and graduated from the FBI National Academy Session 261 in September of 2015. Jim is a two-time Deputy of the Year recipient and received the Medal of Valor in 1997.
Rubright Professional Standards 
Commander Cory Rubright
Commander Cory Rubright began his career with the Ventura County Sheriff’s Office in 1990.  Cory has worked a variety of assignments in his 31 years including Detention Services at both the Pre-Trial Detention and Todd Road Jail Facilities as well as patrol assignments in Thousand Oaks, Headquarters and Camarillo.  During his career, Cory has held positions with the K9 Unit, Special Enforcement Detail and Special Weapons and Tactics Team (SWAT).  Later in his career he worked assignments in Investigations, In-Service Training and the Professional Standards Bureau.  As a Captain, Cory worked as a patrol watch commander, managed patrol operations at the East County Patrol Station, held the Assistant Chief of Police position at the Camarillo Patrol Station and worked both administrative and operational positions in Detention Services.  Cory has a Bachelor’s Degree in Criminal Justice Management from Union Institute and University.
West County Administration
Commander Bill Schierman
Commander Bill Schierman began his career with the Ventura County Sheriff’s Office in 1988.  As a deputy, Bill worked a variety of assignments, including the Pre-Trial Detention Facility, Camarillo Patrol, Crime Suppression Unit, and the Camarillo Special Enforcement Detail.  Bill was promoted to sergeant in 2006 and served as a Jail Watch Commander at the Pre-Trial Detention Facility before being selected for a position overseeing the Sheriff’s Gang Unit.  He also served as the sergeant of the Criminal Intelligence/Crime Analysis Unit.  Bill has been a member of the Special Weapons and Tactics (S.W.A.T.) Team for over 25 years, ultimately taking over management duties of the team when he promoted to captain in 2016.  As a captain, Bill also worked as the Patrol Watch Commander and provided management oversight of the East County Investigations Bureau as well as the Special Investigations Unit.  Bill was promoted to commander in November of 2019 and currently leads the West County Patrol Services Bureau which is comprised of the Headquarters, Ojai, Fillmore and Lockwood Patrol Stations.  Bill also oversees the Sheriff’s Communication Center, the Office of Emergency Services, the Sheriff’s Gang Unit, and the Mounted Enforcement Unit.  Bill has spent the last six years working as part of a team developing innovative data driven strategies to meet current crime trends.  Bill has a Bachelor’s Degree in Criminal Justice Administration from San Diego State University.
Camarillo Police Services
Commander Eric Tennessen
Commander Eric Tennessen began his career with the Ventura County Sheriff’s Office in 1998. He was born and raised in South Dakota and moved to California after obtaining his bachelor’s degree in Civil Engineering from the South Dakota School of Mines and Technology.  After a short stint as a civil engineer, Eric joined the Sheriff’s Office. During his career, Eric gained an extensive background in investigations, including assignments at various levels in the Camarillo Special Enforcement Detail, Moorpark Investigations Unit, Sheriff’s Major Crime’s Unit, Sheriff’s Gang Unit and Special Crimes Unit.  As a captain, Eric served as a watch commander before transferring to Thousand Oaks, where he oversaw patrol operations for the Sheriff’s largest contract city. Eric also held the position as the captain of the Santa Clara Valley station, where he served as the Chief of Police for the City of Fillmore for nineteen months. Eric promoted to Commander in October of 2019, where he was selected to serve as the Chief of Police for the City of Camarillo.  In addition to his bachelor’s degree, Eric earned a master’s degree in Public Administration from California State-Northridge. He is also a 2015 graduate of the Sherman Block Supervisory Leadership Institute.  Eric and his wife, Kaylee, reside in Camarillo with their four children.

ReillyForensic Sciences Laboratory
Commander John Reilly
Commander John Reilly is a 26 year veteran of the Sheriff’s Office who holds a Bachelor’s Degree in History from California University at Northridge and a Master’s Degree in Criminal Justice from American Military University. John has a diverse law enforcement background in a variety of disciplines from tactical operations to investigations. John spent a majority of his career working in Special Enforcement Units and as Detective and Detective Supervisor. As a Captain, John supervised county-wide patrol operations as the Watch Commander, worked as the Sheriff’s Adjutant and served as the Chief of Police for the contract City of Moorpark. As a Commander, John supervised the East County Patrol Division where he was responsible for all Patrol Operations in the east end of the county. Currently John oversees the Crime Lab and Property Room. John and his wife Kelly have three children and reside in the City of Moorpark. John has been active in the community and spends much of his time off coaching youth sports and volunteering at community events.